Envelop.



J. FRIDRICH.

ENVBLOP.

APPLIUATION FILED SEPT. 23, 1910.

Patented Dot. 17, 1911.

JOSEPH FRIDRICK, OF PASSAIC, NEW JERSEY.

ENVELOP.

Specification of Letters Patent.

Patented (let. 17, 191i.

Application filed September 23, 1910. Serial No. 583,410.

To all whom 'it may concern:

Be it lnioivnthat l, JosEPH Fiuoiuon, a subject of the King of Hungary, residing at Passaic, in the county of Passaie and State of New Jersey, have invented certain new and useful improvements in Envelope, ot.' which the following is a speeifieation, reference being had therein to the aeeonipanying dravt'ing.`

This invention relates to envelops, and the objects of iny invention are to provide an envelop-that can he advantageously used for the transmission of Valuable papers und other matter either by inail or express, and to provide a siinple, strong, durable, and inexpensive envelop that cannotbe surreptitiously opened Without detection.

l attain the above objects by a mechanical construction that will be hereinafter specitically described and then claimed, and reference' will now y be had to the drawing, wherein:

Figure 1 is a plan of the envelop sliowing the flaps thereof in an open position. Fig. 2 is a similar view of the envelop with the flaps in a closed and sealed position. Fig. 3 is`a longitui'linal sectional view taken on the line III-llI of ltig. Q. Fig' 1- is a. siiniiar view taken on the line 1V AIV of Fig. 2. Fig. 5 is a longitudinal sectional View taken on the line V-V of Fig. 9. F G is a cross sectional view taken -on the line VIWVI of Fig. 2, and Fig. 7 is a similar 'view taken on the line VfL-VII of Fig. 2.

An envelop in accordance with my invention comprises a rectangular body v1 having a bottoni flap 9. substantially the saine area as the body 1,said bottoni tiap being adapted to he folded upon the dotted line 3. The bottoni flap 2 has the longitudinal edge thereof out away, as at ft, whereby when it is in position matter can be easily inserted in the envelop. The bottoni flap Q has'the vertical edges thereof at the upper end of said flap provided with. extensions 5 adapted to be folded upon the dotted lines t3, said extensions having one side thereof provided With an adhesive material 7, whereby after the flap 2 is folded andA the extensions folded inwardly, said extensions can be secured to the inner side of the body l adjaeent to the upper edge thereof.

'lhe body 1 is provided with end flaps S adapted to be folded upon the dotted lines t) onto the bottoni Hap 2, said end `flaps being of a less depth than the body l to provide clearance for auxiliary tongues 1() carried they can be secured upon the outer side of y the bottoni flap 2 at a point opposite the extensions 'lihe end tiaps S have projecting from the upper angular edges thereof eX tensions 11 which are foldable upon the dotted lines 12. Adhesive material 13 isprovided upon the marginal portions of the inner faces ot' the lla ps S and which also extends upon the inner faces of the extensions 11. The end [laps Snare foldable upon the bottom tlap2 and .secured to the outer face of the latter by the adhesive material 13. 'lhe function of the extensions 11 will be presently referred to. The outer terminus of each of the end flaps 8 has ],)rojeeting therefrom sealing' tongues 14 and 15 each having' its inner face provided with adhesive material. The functions of the tongues 1li and 15 will be `presently referred to.

The upper edge of the body 1 has av sealing` flap 1G adapted to be folded upon the dotted lines 17 onto the upper edges of the bottoni llap 2 exposed above the end flaps 8.

The sealing [lap 1G has a central main tongue 1S and this tongue together with the angular edges of the sealingl tlap 1G has adhesive iixaterial 19.

ltwill be assumed that the bottoni tiap 2 has been folded upon the body portion l, the end flaps S secured to the outer; face of the bottoni flap 2 and further the extensions 5 secured to the inner side of the body 1 and the auxiliary tongues 10 connected to the bottom llap 2. In this position the extensions 11 and tongues It and l5 are not in retaining' position. '1`o seal the envelop the tongues 111@ are inoistened and secured to the outer face il of the bottom llap. The adhesive material of the sealing flap is then inoistened and said ilap folded and secured to the upper exposed portion of the bottoni llap 2, the tongue 18 of the sealing flap tendine,r over and secured to the tongues 14. The tongues 15 are then secured to the outer face of the tongue 1S as ('.learly shown in Fig. Q. The adhesive, material upon the ei: tensions 11 is then nioistened and said eX- tensions are secured to the outer faire of the sealing flap as clearly shown in Fig. 9..

The envelop can be made of strong and durable paper, paperoid, and of any desired size.

SiO@

What I claim, is: Y

An envelop comprising a rectangular body, a bottom flap carried thereby and adapted to be folded upon said body; relatively narrow and short extensions projecting from the outer corners of said bottom flap and adapted to be folded and adhesively secured to tbe inner side of said body, relatively narrow triangular shaped auxiliary tongues carried by said body at the upper vcorners thereof and adapted to be folded in- Wardly and adhesively secured upon the 'upper edges of said bottom flap, end flaps carried by seid body and adapted to be folded inwardly upon said bottom flap and secured thereto, a pair of relatively narrow tongues carried by the end of each of said end flaps and one of which is adapted rto be secured to the bottom flap, the other of said tongues of said end flaps having inclined lower edges, the tongues projecting from the upper edges of said bottom flap, a main sealing tongue carried by said sealing flap and adapted to be secured to the outer faces of those tongues of the end flaps that are secured to the bottom flaps and further adapted to have secured to its outer face those tongues having the inclined edges, and eX- tensions carried by the upper edges of said end flaps and adapted to be adhesively secured upon the outer face of said sealing fla ijn testimony whereof I my signature in the presence of two witnesses.

' JOSEPH FRIDRICH. Titnesses EMIL Mosnowirz, JOSEPH C. BALsoN. 

